Hydraulic contrinuous press



Oct. 13,1936. N. CJRICHARDSO N ,0 2"

I HYDRAULIC conwmuous PRESS Filed March 26, 1935 A 4 Sheets-Sheet 1- I Attorney 7 "Oct. 13, 1936. 'w. c. RICHARDSON I HYDRAULIC CONTINUOUS PRESS Filed March 26, 1935 4 Sheets-Sheet 2 I nventm' Attorney 7 r I I I '7 I l I ill Ir I mam-UN L ad ad 91 IIIII.

w. c. RICHARDSON 2,057,312

HYDRAULIC CONTINUOUS PRESS Filed March 26, 1935 4 Sheets-Sheet 3 Oct. 13, 1936.

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i .2 Claims. (01. 100-35) This invention relates to a hydraulic continuous press, the general object ofthe invention being to provide upper and lower chains of the endless type, means for. feeding the material to I 5 be pressed betweenthe lower reach or stretch of the upper chain and the upper reach orstretch of thelower chain and applying pressure to the links of the lower stretchor reach of the upper chain whereby the material will be pressed be- 10 tween the upper reach of the lower chain and lower reach of the upper chain.

Another object of the invention is to so form .the links of the lower chain that they will form a. trough for the materialbeing pressed by the 15 upper chain and to provide an endless steel belt having perforations therein for registering with the perforations in the links of the chains and. an endless strip of press cloth engaging the outer w surface of the steel belt. r, Another, object of the invention is to subject sure of a spring ram, after which the material is subjected to the pressure of hydraulic rams.

Another object of the invention is to provide supporting rolls for the upper reach of the lower chain and pressure rolls for the lower reach of 0 in like characters denote like or corresponding parts throughout the several views, and in which:---

Figure 1 is an elevation of the apparatus. Figure 2 is an elevation with parts in section 45 of the discharging end of the apparatus.

Figure 3 is a section on the line 3-4 of. Figure 1.

Figure 4 is a fragmentary top plan view with parts omitted and parts in section. a

50 Figure 5 is a section on the line 5-5 of Figure 2.

Figure 6 is a section on the line 6-6 of Figure 1 with parts shown in elevation.

Figure '7 is a section on the line 1-1 of Figure 55 2 with parts shown in elevation.

the material at the front of the press to the pres- Figure 8 is a fragmentary sectional view on the line 8-6 of Figure 2.

Figure 9 is a fragmentary vertical sectional view through the adjacent reaches of the upper and lower chains. 5

Figure 10 is a side view of the front end portion of the frame which carries the pressure rollers engagedby the rams.

Figure 11'is a fragmentary top plan view of the steel belt.

Figure 12 is a top plan view of one of the links of the lower chain.

Figure 13 is a side view of said chain.

Figure 14 is a top plan view of the link of the upper chain. 15

Figure 15 is a side view of said link.

Figure 16 is a plan view of a link provided with a cutter.

Figure 17 is a side view of said link.

Figure 18 is a section on line I8-l8'of Figure 1. 20

In these drawings the letter A indicates an upright supporting frame which rotatably supports the front and rear drums i and 2 for the lower chain B and the front'and rear drums 3 and 4 for the upper chain C, one drum of each 5 pair having its pintles carried by the adjustable bearing means shown generally at 5-for the front drum I, in Figure 1, so that the tension of the chain can be adjusted. The links 6 of the lower chain are each formed of a plurality of longi- 3o tudinally extending bars 1 having perforations 8 therein and provided with perforated ears 9 at their ends which receive the pivot pins II) which pivotally connects the links together as shown more particularly in Figure 9 and each of these links 6, as shown in Figures 12 and 13, have bars I of considerable height at their sides so that each link is of substantially trough shape, the side bars I forming the sides of the trough. One end of each bar I is formed with a tongue I0 40 for fitting in a groove H of the next link and a tongue 1" is formed on the upper or free edges of eachbar I.

Each link 12 of the upper chain is formed in substantially the same manner as a link of the lower chain except that these links 12 are not provided with the high side bars I as ar t links of the lower chain. A link of the upper chain is shown in Figures'l4 and 15. 5o Figures 16 and 1'? show a link I3 made in substantially the same manner as the link l2 excepting. a transverse groove is formed in one face of the link for receiving a cutter bar I which is pressed outwardly by a spring !5 in the groove. These links l3 can be substituted for the links l2 when desired.

The lower reach of the lower chain is supported by the rollers l5 and the upper reach of the upper chain is supported by the rollers l1 asshown in Figuresland 2.

An endless steel belt l3 and an endless strip of cloth or fabric I! are provided for each of the upper and lower chains, the strip ll contacts the outer face of thebelt i8 and said belt is provided with perforations which register with the perforations of the links. as shown in Figure 9, a portion of the belt being shown in Figure 11. By having the fibrous strips I 9 covering the outer faces of the belts It the material to be pressed is contacted by said fibrous strips it. Each set of belt and strip passes over a drum 2| supported at the discharge end of the machine and at the front or inlet end of the machine the and over or around the roller 3, as shown in Figure 1. As it will be seen the belt and strip of the lower chain rest in the bottom of the trough formed by the links of the chain while the belt and strip of the upper chain. engage the outer surface of the links of said chain. Transverse supporting plates 22 areicarried by the rear end of the frame in front of the drums 2i for supporting the upper reaches of the lower and upper sets of belts and strips.

A horizontal row of rollers 23 is provided for supporting the upper reach of the lower chain and a horizontal row of rollers 24 engages the links of the lower reach of the upper chain, these rollers 24 having their pintles rotatably arranged in the side bars 25 which 'at the front end of the apparatus are each provided with the pivoted sections 25' as shown in Figure 10, the pintles of some of these rollers 24 acting to pivot the sections to each other and to the main part of each side bar. Front and rear slotted brackets 23 are attached to the main frame and the pintles of the end rollers 24 pass into the slots 21 of these brackets as shown more particularly in Figure 5 and this arrangement permits limited vertical-movement of the bars 25 and the rollers 24.

A spring ram 28 shown in detail in Figure 6 is supported from the main frame and engages the pivoted sections 25' of the side bars and tends to press said sections and the rollers carried thereby downwardly. As shown in Figure 6 this ram includes a socketed lower part 29 which contacts the sections 25' and the socket of which receives the head 30 of a bolt 3| which passes through a nut 32 attached to the frame. A spring 33 is partly located in the socket and engages the nut 34 on the threaded part of the bolt so that the tension of the spring 33 can be adjusted as well as the distance between the base part 29 and that part of the main frame which carries the nut 32. By adjusting the parts of the spring ram the amount of pressure with which the front links of the lower reach of the upper chain engages the material can be regulated.

Hydraulic rams 35 engage the main parts of the bars 25 to cause the links of the upper chain engaged by the rollers 24 carried by said parts 25 to engage the material being pressed and each of these rams 34 comprises a cylinder 36 having a piston 31 therein the piston rod 3| of which is formed of two parts adjustably connected together as shown in Figure 7 with the lower end of the rod engaging the head 35 which rests on the 'bars 25 as shown more clearly in Figure 3. Fluid under pressure is simultaneously introduced into the top parts of the cylinders 35 by the pipe line 40 so' that the hydraulic rams will exert uniform pressure upon the parts.

Alternate rollers of the lower row 23 are driven from a shaft 4i having the worms 42 thereon engaging the worm gears 43 on the pintles of said alternate rollers and alternate rollers of the upper'row 24 are driven from. a shaft 44 having worms 45 thereon engaging the worm gears 46 on the pintles of said alternate rollers. The shaft 4i has a pulley 41 on one end thereof and the shaft 44 has a worm gear 44' thereon which meshes with a worm 54 on a cross shaft 8i having a pulley 62 connected therewith, the pulleys 41 and 82 being belted to a suitable source of power. Thus these alternate rollers of the upper and lower rows 23 and 24 will drive the two chains and the belts i5 and the strips is.

A hopper 48 is located at the front end of the machine and feeds the material to be pressed between the front ends of the upper reach of the lower chain and the lower reach of the upper chain, and as it will be seen in Figure 1 the front drum .3 of the upper chain is so located that the front end of the lower reach of said chain is spaced from the lower chain so that the material can pass between the two chains, after which it is pressed between the two chains, the belts l8 and the strips I! by the pressure exerted by the spring and hydraulic rams.

A distributor 45, consisting of a roll provided with paddles is located in the hopper and is driven by a belt and pulleys shown generally at 53 from the front roller 23, as shown in Figure l, and blades II are located at the rear end of the machine for scraping the pressed material from the strips is as also shown in Figure l.

The side bars I of the links of the lower chain have pressure applied thereto, as said links travel from the upper part of the drum I to the upper part of the drum 2, by the vertically arranged rolls 52 carried bychannel members 53 located at the sides of the main frame and slidably supported for horizontal movement by the studs 54 carried by the brackets 55 attached to parts of the main frame. Bolts 56 pass through threaded holes in parts of the main frame and engage the members 53 to press the rolls 52 against the side bars 'I' of the links 5 as shown in Figure 3. These rolls 52 hold the links of the upper reach of the lower chain and the lower reach of the upper chain in position.

A moisture pan 5'! is located under the upper reach of the lower chain for receiving moisture from the pressed material and this pan is provided with a depending tube 58. I also provide a scraper 53 in the rear part of the hopper 48 which acts to evenly distribute the material passing from the hopper upon the front portion of the upper reach of the lower chain.

From the foregoing it will be seen that the two chains as well as the two steel belts and fabric belts are driven by the upper and lower rollers 24 and 23, alternate ones of these rollers being driven with each driven roller of the upper row 24, being located directly above an undriven roller of the lower row 23. It will also be seen that the material is subjected to pressure first made in the construction and in the combinationtwo chains while in pressing position in proper.

position.

It is thought from the foregoing description that the advantages and novel features of the invention will be readily apparent.

It is to be understood that changes may be chains. When this is done they will act as drag links, forcing the material through the machine under pressure. When such links are used, the pressure cloth and steel belts are omitted from the upper chains.

The machine may be used for pressing fabrics,

extracting oils from cotton and flax seeds and the like, and fruit and vegetables.

What is claimed is:- 1 s 1. A pressing machine of the class described comprising upper and lower endless chains, drums for supporting the chains, the links ofthe lower chain being of substantially trough shape in cross section, means for feeding material into the trough of the upper reach of the lower chain at one end of the machine, the material dis-J charging at the opposite end thereof, an endless perforated belt of metal, an endless fabric strip contacting the outer face of the belt, a set of these belts being provided with-each chain with each belt engaging the outer faces of the links of each chain, a drum for each set spaced rearwardly of the rear chain drum, the front ends of the sets passing around the front chain drum with the links, the links of both setsof chains being perforated and the perforations registering .with those in the belts, means for applying pres- .sure to the lower reach of the upper chain and lower reach of the upper chain and means for rotating some of the rollers of both rows, said means including worm gears engaging alternate rollers, with the undrlven rolls of the upper row placed over thedriven rolls of the lower row, said pressure means including hydraulic rams for pressing the major part of the upper-row of rolls downwardly and a spring ram for pressing the front rolls of the top row downwardly, said top row being supported for vertical movement by side bars supported for vertical movement, the front parts of the side bars being formed in sections pivotally connected with the major parts of the side bars with the spring ram engaging said sections.

2. A pressing machine of'the class described comprising upper and lower endless chains, drums for supporting the chains, the links of the lower chain being of substantially trough shape in cross section, means for feeding material into the trough of the upper reach of the lower chain at one end of the machine, the material discharging at the opposite end thereof, an endless perforated belt of metal, an endless fabric strip contacting the outer face of the belt, a set of these belts being provided with each chain with each belt engaging the outer faces of the links of each chain, a drum for each set spaced rearwardly of the. rear chain drum, the front ends of the sets passing around the front chain drum with the links, the links. of both sets of chains being per forated and the perforations registering with to the lower reach of the upper chain and means for causing the chainsto travel in their paths, said means including upper and lowerhorizontal rows of rollers, the lower row engaging the links of the upper reach of the lower chain and the upper row engaging the links of the lower reach of the upper chain and means for rotating some of the rollers of both rows, said means including worm gears engaging alternate rollers, with the undrlven rolls of the upper row placed over the driven rolls of" the lower row, said pressure means including hydraulic rams for pressing the major part of "the upper row of rolls downwardly and a spring ram for pressing the front rolls of the top row downwardly, said top row being supported for vertical movement by side bars supported for vertical movement, the front parts of the side bars being formed in sections pivotally connected with the major parts of the side bars with the spring ram engaging said sections, and apan located under the lower row of rolls for receiving moisture from the pressed material.

. WILLIAM C. RICHARDSON.

those in the belts, means for applying pressure 

